| 交通流噪声分析的流体力学特征线算法 |
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| 引用本文： | 李天匀,唐山. 交通流噪声分析的流体力学特征线算法[J]. 华中科技大学学报(自然科学版), 2001, 29(7): 92-94 |
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| 作者姓名： | 李天匀 唐山 |
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| 作者单位： | 华中科技大学交通科学与工程学院;华中科技大学交通科学与工程学院 |
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| 基金项目： | 国家自然科学基金资助项目 (60 0 0 2 0 0 5 ) |
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| 摘 要： | 把车流模拟为流动的线噪声源,利用流体动力学理论建立交通流模型,提出的特征线算法解决了差分数值格式对初始条件和畅流速度等的制约,以及信号灯控制下的流场分布和噪声预报问题,计算结果与有关实测数据的对比表明本文方法是准确可靠的。
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| 关 键 词： | 交通流噪声 流体动力学 特征线 |
| 文章编号： | 1000-8616(2001)07-0092-03 |
| 修稿时间： | 2000-09-13 |
Characteristic Line Computation of Flow Mechanics for Traffic Flow Noise |
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| Li Tianyun Tang Shan Assoc. Prof., College of Traffic Sci. & Eng.,HUST,Wuhan ,China.. Characteristic Line Computation of Flow Mechanics for Traffic Flow Noise[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2001, 29(7): 92-94 |
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| Authors: | Li Tianyun Tang Shan Assoc. Prof. College of Traffic Sci. & Eng. HUST Wuhan China. |
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| Affiliation: | Li Tianyun Tang Shan Assoc. Prof., College of Traffic Sci. & Eng.,HUST,Wuhan 430074,China. |
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| Abstract: | The running automobiles on the roads are modeled as the sources of flow line noise and the traffic flow noise is researched based on flow dynamic theory. The method of characteristic line is presented to study the flow field, forecast the flow noise under the control of signal lamp and overcome shortcomings of differential approach that are constrained by initial condition and unblocked velocity. It is shown that the presenting approach is accurate by comparing the computational results with measured data. This paper presents a new method for sound environment plan and cities forecast. |
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| Keywords: | traffic flow noise flow dynamic theory characteristic line |
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